Densities, Viscosities and Excess Properties for Dimethyl Sulfoxide with Diethylene Glycol and Methyldiethanolamine at Different Temperatures

Abstract

Densities and viscosities of the binary systems dimethylsulfoxide with diethylene glycol and methyldiethanolamine were measured at temperatures ranging from 293.15 to 313.15 K, at atmospheric pressure and over the entire composition range. The experimental density data was correlated as a function of composition using Belda’s and Herraez’s equations, and as a function of temperature and composition using the models of Emmerling et al. and Gonzalez-Olmos-Iglesias. The viscosity results were fitted to the Grunberg-Nissan, Heric-Brewer, Wilson, Noda, and Ishida and Eyring-NRTL equations. The values of viscosity deviation (), excess molar volume (VE), partial molar volumes ( and ) and apparent molar volume ( and ) were determined. The excess functions of the binary systems were fitted to the polynomial equations. The values of thermodynamic functions of activation of viscous flow were calculated and discussed.

Ionic Liquid–Glycol Mixtures for Direct Air Capture of CO2: Decreased Viscosity and Mitigation of Evaporation Via Encapsulation

“…The dependence of evaporation rates of the bulk glycols and their mixtures with ILs had a general trend of PG > EG > 1,3-P > DEG, which correlates with reported vapor pressures of the pure glycols. 63 − 65 The only exceptions were EG and PG at 25 °C, which could be the result of the higher water content of the EG-containing samples. According to Raoult’s Law for the volatility of ideal binary mixtures (i.e., no intermolecular interactions), the vapor pressure of a component can be calculated as in eq 4 where x i is the mole fraction of a given component i and P sat, i is saturation pressure of that component when pure.…”

Encapsulation of functional solvents for improved thermal stability in CO2 capture applications

“…The evaporation rates of the bulk glycols and their mixtures with ILs at 25 °C had a trend dependent on the glycol, with the evaporation rate of EG > PG > 1,3-P > DEG, which correlates with previous reports of the bulk glycols. [63][64][65] Perhaps surprisingly, the evaporation rates of the IL/glycol mixtures were also dependent on the identity of the IL, with volatility trending as . In all cases, addition of the IL to the glycol decreased the volatility of the glycol, which can be attributed to favorable interactions between the components, e.g., ion-dipole and dipole-dipole interactions.…”

Shear Bond Strength of Ah26 to Human Dentin Treated with Dimethyl Sulfoxide (Dmso)

“…As a polar aprotic solvent with polar and non-polar elements, dimethyl sulfoxide (DMSO; (CH 3 ) 2 SO) is a highly polar aprotic solvent with a polar S=O group and two hydrophobic CH 3 groups [ 11 ]. This solvent is miscible in solvents and most adhesive monomers and is considered to be one of the best currently used penetration enhancers for medical purposes due to its amphiphilic nature, small size, and dipolar aprotic nature [ 12 ].…”